dm: gpio: Correct use of -ENODEV in drivers
In U-Boot -ENODEV means that there is no device. When there is a problem
with the device, drivers should return an error like -ENXIO or -EREMOTEIO.
When the device tree properties cannot be read correct , they should
return -EINVAL.
Update various GPIO drivers to follow this rule, to help with consistency
for future driver writers.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reported-by: Adam Ford <aford173@gmail.com>
diff --git a/drivers/gpio/tegra186_gpio.c b/drivers/gpio/tegra186_gpio.c
index c5a7e13..deb59e8 100644
--- a/drivers/gpio/tegra186_gpio.c
+++ b/drivers/gpio/tegra186_gpio.c
@@ -181,7 +181,7 @@
regs = (uint32_t *)devfdt_get_addr_name(parent, "gpio");
if (regs == (uint32_t *)FDT_ADDR_T_NONE)
- return -ENODEV;
+ return -EINVAL;
for (port = 0; port < ctlr_data->port_count; port++) {
struct tegra186_gpio_platdata *plat;